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BOTANY. 



175 



11^ ( 0. ANGUSTiFOLius, Sii'eel. ; Choisy, I. c. (pro parte.) Colj-menia angnstifolia, NiiU. C. decnm- 



' bens, Nuit. AUionia linearis, Purshy I. c. Folia linearia, sfepius elongata, repanda, crassa, 



glaucescentia, cum caiile 1-6 pcdali glaberrima. Pedunculi et involucra pubescentia. Fructus 

 cinereO'pubescens. Upper Missouri to the Rocky mountains^ New Mexico^ and Texas. No. 745, 

 Fendler; 606, 607, 1822, Wrigld. 



2. Perigonium angustius infundibuliforme, involucro quadruplo longius, Antbocarpiura 

 clavato-oblongum, apiculatum, pubescens, inter costas validas profunde sulcatum. 



0* cocciNEUS, ToTf. ined. Species habitu pra^cedentis, floribus et fructu distinctissimuni. 

 New Mexico. 



POLYGONACEJ^. 



Hillsides, along the canons 



Eriogonum niERACiFOLTUM, BeutJi, in DG. Prodr. 14, pars 1, ^. 6. 

 of Eio Grande, above the mouth of the Pecos ; Parry. Western 1 

 Wrighty No. 616. A well-marked species, but allied to E. alatum, from which it is easily 

 distinguished by the achenium being winged only above the middle^ and not at all below. It 

 is commonly about a foot and a half or two feet high. The sepals are nearly equal, and vary 

 from yellowish to rose color. Pedicels articulated close to the flower. Bracteoles linear, 

 glabrous. Embyro excentric and a little curved. 



Eriogonum alatum, To7^r. in Sitgreave Rep. p. 168, t. 8 ; BentJi. I, c. Hills near the Copper 



Tune — July; BigeloiVy Thurher, (No. 225.) Some of the 



Mines, New Mexico ; also near Cruces, June — July ; BigeloiVy Thurhery 

 specimens are more than 'bur feet high. 



Eriogonum ciliatum (2b?T.; Benth. ?. c): lierbaceum, perenne ; caule nudo tereti glabro 



parce dichotomo-ramoso ; foliis radicalibus obovatis obtusis cum acumine brevissimo basi in pe- 

 tiolum attenuatis supra glabris, subtus pilosiusculis margi»e ciliatis ; pedunculis elongatis ; in- 

 volucris campanulatis 5-fidis ; perigoniis subcoriaceis semisexfidis, laciniis ovatis erectis, interi- 

 oribus pauUo longioribus angustioribusque ; achenio triquetro perigonio fructifero sub^quali. 



Sandy soil near Buena Yista, 

 State ; Gregg. Boot perennial 



Dr. Edwards. Near Monterey, in the same 

 lical cluster from a short divided caudex, li to 



2^ inches long (including the petiole) and six to ten lines wide. Stems, several from one root, 

 12-15 inches high, slender, two to three times forked, the terminal divisions bearing a solitary 

 involucre which is about two lines in diameter. Flowers very numerous, the pedicels jointed 

 close to the flower. Bracteoles narrowly linear, fringed with long hairs. Perianth purple, 

 of a coriaceous (or probably, in the living plant, of a fleshy) texture ; the segments extending 

 scarcely below the middle, rather obtuse ; the entire base showing six obtuse ridges. Stamens 

 included, six of them alternating with the segments; the other three opposite the inner segments 

 and inserted considerably lower down ; filaments smooth. Ovary triangular ; styles very short. 

 Acbenium enclosed in the connivent perianth, triquetrous, smooth. Embryo incurved, excentric. 

 On high plains near San Juan de la Yagueria, Dr. Gregg found an Eriogonum that seems to 

 be a variety of this species, but it differs in the following characters : var. roLiosuM : caule 

 scabriusculo 2-3-chotome ramoso, axillis foliosis. Plant about a foot high, more branched than 

 the preceding ; the radical leaves smaller, less ciliate, and of a somewhat fleshy texture. Cauline 

 leaves about three quarters of an inch long; smooth. Peduncles one to one and a half inch 

 long. Sepals united to the middle, closing around the fruit. 



EriogonUxM LONGIFOLIUM, iVw^;^. m Trans. Amer. Phil. Soc. (n. ser,) 5, p. 164; Benth. I. c. 



Mountains and plains near Live Oak Creek, September ; Bigeloio. 



